Micromod MOD: 30ML Installation - Manual (Page 57)

MOD 30ML Multiloop Controller
MODULAR I/O CONNECTIONS
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MODULAR I/O CONNECTIONS
4.1 GENERAL
Read this section thoroughly before making any connections to modules. Installation
personnel should be qualified technicians. Observe all electrical code requirements and
safety standards applicable to these wiring procedures.
Specific instructions and connection diagrams for the various input and output modules are
provided in Sections 4.3 and 4.4. A listing of the applicable electrical specifications is
included with each diagram.
4.2 MODULAR I/O CONNECTION GUIDELINES
The wiring connections described in this section are made with the controller installed in its
operating location and with the power off. Figure 4-1a shows the modular I/O connection
terminals for Model C and Figure 4-1b shows the modular I/O connection terminals for
Models A & B with the cover removed.
The recommended procedure for making, connections to I/O modules is as follows:
1. The diagrams for single width modules show connections to a sample location (usually
location 1). The terminal numbers for the actual location being used must be determined
by matching pin numbers 1 and 2 in each diagram to the terminal numbers for the
selected location as shown in Figures 4-1a and 4-1b.
2. The spacing of module locations on the carrier board divides locations 1 through 10 into
pairs allowing double wide modules to occupy only five different locations. The terminal
numbers applicable to each dual location are shown on the connection diagrams for
double wide modules.
3. Route low-level signal wiring from the top left hand side of the housing and ac voltage
wiring from the bottom right hand side and distribute to appropriate terminals.
4. Use a small, flat-head screwdriver to loosen appropriate connection screws and clamps
on terminal blocks.
5. Strip approximately 5/16 inch (8 mm) of insulation from the end of each wire, insert wires
at assigned terminals, and secure terminal screws and clamps.
 WARNING
All wiring connected to the controller terminals must be rated for the
maximum voltage present, or alternately, wiring in circuits operating at
greater than 30 volts must be rated for at least twice the circuit voltage.
6. After all connections are completed and checked, do the following:
a. If communications are required, follow the applicable procedure in Section 5.
b. If all connections are completed, the ac power wiring can be connected at the
distribution panel (ac source).
* NOTE : Before putting the controller into operation, it must be configured using
either the front panel keys or the PC configuration software. See
Section 1.1.2 for related documents.
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